The Mad Hatter's Uncake

1
Servings

Ingredients

  • 1 Tablespoon unsalted butter
  • 3 Tablespoon turbinado sugar (crystallized coarse raw)
  • 3 Cup all purpose flour
  • 1 Teaspoon baking powder
  • 1/2 Teaspoon baking soda
  • 1/2 Teaspoon salt
  • 1 1/4 Cup whole milk
  • 2 Teaspoon vanilla
  • 1 1/2 Cup creamy peanut butter
  • 1/2 Cup unsalted butter (softened)
  • 2 Cup sugar
  • 1 Cup packed light brown sugar
  • 6 eggs (room temperature)
  • 3 Cup unsweetened blackberries
  • 1/2 Cup sugar
  • 1 Tablespoon water
  • 2 Tablespoon cornstarch
  • 1 Teaspoon fresh lemon juice
  • 1/3 Cup creamy peanut butter
  • 1/2 Cup unsalted butter (softened)
  • 3 Cup sifted powdered sugar
  • 1/4 Cup whole milk
  • 2 Teaspoon vanilla