Peanut Butter Swirl French Toast (Stale Sourdough Redemption)

Some flavors taste like childhood.
Some flavors taste like comfort.
And some — like this one — taste like the warmest hug you’ve ever eaten.

Today’s recipe in the Wasting Sourdough Is a Sin series is Peanut Butter Swirl French Toast, and it is rich, creamy, salty-sweet heaven.

Imagine warm, golden slices of Diablo Dough sourdough covered in a melty peanut butter drizzle that pools into every ridge of the toast… a few roasted peanuts sprinkled on top for crunch… maybe even some banana slices if you’re feeling classic. It tastes like peanut butter pie and French toast teamed up to make your morning better.

It’s nostalgic.
It’s cozy.
It’s indulgent without being complicated.

And the peanut butter swirl?
It photographs like a dream.

Full recipe below! 🥜✨

PEANUT BUTTER SWIRL FRENCH TOAST

Creamy, melty, rich, and perfectly crunchy.

Ingredients (Serves 2–3)

Custard:

• 2 large eggs

• 1/3 cup milk

• 2 tbsp heavy cream

• 1 tbsp sugar or maple syrup

• ½ tsp vanilla extract

• Pinch of salt

Peanut Butter Swirl:

• 2–3 tbsp creamy peanut butter

• 1 tbsp powdered sugar or maple syrup

• 1–2 tsp milk or heavy cream (to thin into a drizzle)

Microwave peanut butter for 10 seconds for easier mixing.

Crunch Topping:

Use 1 or combine:

• Roasted peanuts, chopped

• Peanut butter granola

• Crushed pretzels (sweet + salty dream)

Optional Fruit:

• Sliced bananas (HIGHLY recommended if available)

For the bread:

3–4 slices of day-old Diablo Dough sourdough

For cooking:

Butter

Instructions

1. Make the custard.

Whisk eggs, milk, heavy cream, vanilla, sugar/maple, and salt until smooth.

2. Make the peanut butter swirl.

Stir warm peanut butter with powdered sugar/maple and milk/cream until pourable and glossy.
It should ribbon beautifully off a spoon.

3. Dip the sourdough.

Soak slices for 10–15 seconds per side.

4. Cook the French toast.

Warm butter in a skillet over medium heat.
Cook slices 2–3 minutes per side until golden brown with lightly crisp edges.

5. Assemble.

• Drizzle peanut butter swirl generously over warm French toast

• Add a handful of chopped peanuts for crunch

• Add banana slices if you have them

• Optional: finish with a touch of honey or maple syrup for shine

• Dust with powdered sugar if you want a sweeter finish

Serve warm — the peanut butter swirl thickens slightly as it cools, making every bite ridiculously good.

Why This Recipe Works

✔ Peanut butter swirl melts into the warm toast = cozy richness
✔ Custardy sourdough keeps the base soft and fluffy
✔ Peanuts add the perfect crunch
✔ Salt + sweet balance makes the flavor addictive
✔ Optional bananas add brightness and nostalgia

This is comfort food with a little elegance — and a ton of personality.

Variations

PB & Honey French Toast

Swap drizzle for honey + peanuts.

PB Banana Split

Add bananas, strawberries, and a tiny chocolate drizzle.

PB Pretzel Crunch

Top with crushed pretzels + flaky salt.

Chocolate PB Swirl French Toast

Add 1 tsp cocoa to the custard or drizzle melted chocolate on top.

Storage & Reheating

Best eaten fresh, but leftovers can be reheated in a skillet or air fryer.
Peanut butter drizzle may thicken — reheat 5 seconds in the microwave to loosen.