Strawberry Cake Filling (Printable)

Glossy strawberry filling made with fresh berries, sugar, lemon and cornstarch for easy layering in cakes and pastries.

# What You'll Need:

→ Fruit

01 - 2 cups fresh strawberries, hulled and diced

→ Sweeteners & Thickeners

02 - 1/3 cup granulated sugar
03 - 1 tablespoon lemon juice
04 - 2 tablespoons cornstarch
05 - 1/4 cup water

→ Flavorings

06 - 1/2 teaspoon pure vanilla extract (optional)

# Steps:

01 - In a medium saucepan, mix diced strawberries, granulated sugar, and lemon juice until strawberries are evenly coated.
02 - Set saucepan over medium heat. Cook for 5 to 7 minutes, stirring occasionally, until strawberries soften and release juice.
03 - In a small mixing bowl, whisk cornstarch with water until the mixture is completely smooth.
04 - Pour cornstarch slurry into the saucepan and stir constantly. Continue to cook for 3 to 5 minutes, until filling thickens and develops a glossy sheen.
05 - Remove from heat. Stir in vanilla extract if desired. Allow mixture to cool completely before using as a filling.
06 - Transfer cooled filling to an airtight container and store in the refrigerator for up to 5 days.

# Expert Advice:

01 -
  • You can make it ahead and stash it in the fridge for impromptu cake or cupcake layering emergencies.
  • It's a quick fix for lifeless store-bought cakes—suddenly, they're bursting with homemade charm.
02 -
  • If you rush the cooling, the filling slides right off your cake layers—patience here is everything.
  • I once forgot to dissolve my cornstarch first and ended up with tiny chewy lumps—always mix it smooth before adding.
03 -
  • If you want an extra smooth filling, blend the fruit after cooking—it spreads like a dream.
  • Add the vanilla right at the end so its aroma doesn’t evaporate, making your filling taste extra special.