White Pizza Sauce with Sourdough Starter [for sourdough pizza bases]

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Indulge your tastebuds in this white pizza sauce made with sourdough starter! This creamy white pizza sauce is flavored with fresh garlic and thickened using your very own homemade sourdough starter - which also adds a new depth of flavor to the white sauce. 

If you're looking for something a little different from the usual tomato sauce for your next batch of pizzas, then you're going to want to try this! It might just be the star of your next pizza party!

I highly recommend using this white pizza sauce with sourdough starter with this sourdough pizza dough recipe. It's so easy to make! You might also like to check out these recipes for sourdough pizza bianca or sourdough zucchini pizza.

A bowl of white pizza sauce made with sourdough starter sitting on a white counter top. The bowl is surrounded by garlic cloves, cheese and basil leaves.

Why You'll Love This Recipe!

Something Different - the creamy, rich texture and flavor of this white pizza sauce recipe provides something different than the usual tomato based pizza sauce. It allows you to get creative with ingredients that pair better with a creamy base and will wake up your taste buds to a whole new experience.

Versatility - while this recipe is called white PIZZA sauce, you can actually use it for lots of other things too! Add it to a grilled cheese sandwich, toss it through pasta or use it for a creamy garlic sauce for prawns and rice, the possibilities are endless!

Garlicky Goodness - this white pizza sauce is flavored with garlic which gives it a punchy lift. The fresh garlic cuts through the creaminess ensuring the flavor and texture of this sauce isn't too rich and overwhelming.

A bowl of white pizza sauce made with sourdough starter, sitting on a white counter top next to a pizza base, some basil leaves and a rolling pin.

How To Make White Pizza Sauce with Sourdough Starter

This white pizza sauce recipe has been based on my recipe for sourdough béchamel sauce, which is great for using in lasagne. It uses a very similar technique. To ensure this sauce works, I recommend having all the ingredients on hand before you start. You don't want to leave this sauce unattended.

A flat lay of ingredients necessary to make white pizza sauce with sourdough starter.

In a medium sized saucepan, melt the butter gently over a low heat. You don't want to brown the butter, so just allow it to gently liquefy. 

Melted butter in a saucepan with a dollop of sourdough starter in the middle.

Now, add the sourdough starter (or sourdough starter discard) and around 50g of milk (a good splash) and gently loosen the sourdough starter with a whisk so that the butter, sourdough starter and milk form a loose paste (this is like a roux but with a slightly different technique because you're using sourdough starter instead of flour). Don't worry if it's a lumpy mess, it will all come together. If you're having trouble with the paste, take it off the heat so the sourdough starter doesn't cook before it's dissolved.

Now, add the milk in small batches while continuing to whisk the white pizza sauce. You can do this over a low heat.

Once all the milk has been added and the sauce is starting to thicken, add the minced garlic, crumbled sharp cheddar, salt, pepper and onion powder.

Continue to whisk until the cheese is completely melted and the sauce is thick and smooth. I usually increase the heat to medium for this to ensure the milk is heating adequately. 

Once the sauce is thickened to your liking, remove from the heat and transfer to a container or bowl. Allow to cool before adding to your pizza base.

If you like a super smooth sauce, you could use a stick mixer to smooth it out or add it to a food processor. I don't do this because I find that it's fine once it's on a pizza and there's cheese melted on top.

Tips for Making The Best White Pizza Sauce with Sourdough Starter

This sauce is really easy to make, but there are a few things you can do to ensure you have success with it each and every time you make it.

  • Ensure your sourdough discard is at room temperature before adding it to the melted butter. This will ensure that it mixes into the butter more easily. Cold starter tends to be stiff and harder to dissolve. 
  • You want a crumbly cheese that will melt well to make this sauce. A sharp aged cheddar cheese or parmesan cheese both worth really well. You can add a little of each if you like too.
  • Whisk the sauce continuously while cooking to avoid lumps and ensure a smooth consistency. This also helps the sauce thicken gradually.
  • Allow the sauce to simmer gently over low to medium heat. This slow cooking process allows the flavors to meld and results in a rich, cohesive sauce.
  • Be cautious not to bring the sauce to a boil, as this can cause it to separate. Keep the heat low and simmer until the sauce thickens to your desired consistency.
  • I've used black pepper, but you can use white pepper if you prefer. This will keep your white sauce lighter than using black pepper.
A bowl of white pizza sauce made with sourdough starter, sitting on a white counter top next to a pizza base, some basil leaves and a rolling pin.

What Pizza Toppings Pair Well with White Pizza Sauce?

Making "white pizza" might just be my new favorite thing! I absolutely love a white sourdough pizza, just sourdough pizza base, white pizza sauce made with sourdough starter and a little bit of mozzarella cheese on top. A sprinkle of dried herbs for a little pizazz. It's so good! But there are lots of ways to top your white pizza sauce that might just tickle your fancy too! Here are some of my favorite toppings:

Chicken: Grilled or roasted chicken adds a savory and protein-packed element to the pizza, creating a satisfying and hearty flavor profile.

Prawns: my favorite pizza topping to add to this sourdough white pizza sauce are delicious prawns! They work so well - it's an easy way to create a garlic prawn pizza!

Sun-Dried Tomatoes: For a burst of sweetness and concentrated tomato flavor, sun-dried tomatoes are an excellent choice, adding complexity to the pizza.

Caramelized Onions: Sweet and golden caramelized onions provide a subtle sweetness that enhances the overall flavor profile of the pizza.

Prosciutto: The saltiness and delicate texture of thinly sliced prosciutto add a gourmet touch, creating a perfect harmony with the creamy sauce.

Ricotta - use some creamy homemade ricotta on top of this white pizza sauce for a delicious twist on white pizza.

A sourdough pizza base topped with white pizza sauce and mozzarella cheese.

Other Ways to Use White Pizza Sauce with Sourdough Starter

While using this white pizza sauce on your favorite sourdough pizza base is the best, there are also a lot of different ways you can use this white pizza sauce, because let's face it, food waste is not cool. Here are some of the ways I use this white pizza sauce outside of pizza:

A bowl of white pizza sauce made with sourdough starter sitting on a white counter top. The bowl is surrounded by garlic cloves, cheese and basil leaves.

Homemade White Pizza Sauce with Sourdough Starter

Create a unique twist on traditional white pizza with this flavorful sourdough-infused white pizza sauce. Blending the tangy essence of sourdough starter with garlic and sharp cheddar, this sauce adds a delightful depth of flavor, transforming your pizza into a gourmet experience that balances creamy richness with a subtle sourdough kick.
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Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 5 pizzas
Calories 943 kcal

Equipment

  • Medium Saucepan
  • Whisk

Ingredients  

  • 40 g Butter (I use salted)
  • 4 Cloves of Fresh Garlic (minced or finely chopped)
  • 100 g Sourdough Starter (or sourdough discard)
  • 250 g Whole Milk
  • 1 teaspoon Onion Powder (around 1 g)
  • 1 teaspoon Salt (6g)
  • 1 teaspoon Pepper (3g) - I used ground black pepper but you can use white pepper if you preer
  • 100 g Sharp Cheddar Cheese (crumbled) (you can use parmesan if you prefer)

Instructions 

  • In a medium sized saucepan, melt the butter gently over a low heat.
  • Now, add the sourdough starter (or discard) and around 50g of milk (a good splash) and gently loosen the sourdough starter with a whisk so that the butter, sourdough starter and milk form a loose paste (this is like a roux but with a slightly different technique because you're using sourdough starter instead of flour).
  • Now, add the milk in small batches while continuing to whisk the white pizza sauce.
  • Once all the milk has been added and the sauce is starting to thicken, add the minced garlic, crumbled sharp cheddar, salt, pepper and onion powder.
  • Continue to whisk until the cheese is completely melted and the sauce is thick and smooth.
  • Once the sauce is thickened to your liking, remove from the heat and transfer to a container or bowl. Allow to cool before adding to your pizza base.

Notes

Cheese - I've used sharp cheddar which has a crumbly texture and very strong flavor. You can use a grated parmesan if you prefer - or really any cheese you like as long as it melts well.
 
Garlic - I encourage you to use fresh garlic, but if you can't get any, then garlic powder or granules is fine. I'd use a tablespoon of garlic granules as a substitute.
 
Milk - I've used whole milk but you can use half and half or any milk you like.

Nutrition

Calories: 943kcal Carbohydrates: 35g Protein: 35g Fat: 75g Saturated Fat: 44g Polyunsaturated Fat: 3g Monounsaturated Fat: 18g Trans Fat: 1g Cholesterol: 216mg Sodium: 5660mg Potassium: 482mg Fiber: 1g Sugar: 13g Vitamin A: 2407IU Vitamin C: 0.5mg Calcium: 1035mg Iron: 0.3mg
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4 Comments

  1. Can you make this a day ahead of time? I'm planning a sourdough pizza party for my 3 yr old and want to make some elements the day before.
    Thanks 🙂

    1. Absolutely, it can be stored in the fridge for up to 5 days with no issue. I put it on the pizza cold as it warms through when it cooks 🙂 Enjoy xx

    1. You can freeze this sauce yes. Allow to thaw at room temp and give it a really good stir once thawed to ensure it's not lumpy 🙂