Tiramisu Brownie Ingredients Espresso Brownie Base 3 oz. bittersweet chocolate, roughly chopped 1 stick unsalted butter, cut into tablespoon pats 1 Tbsp instant espresso powder (or sub 2 Tbsp of Kahlua - I have not tried this) 1/2 C sugar 2 eggs 1/2 C AP flour Pinch salt 1/2 teaspoon vanilla extract Mascarpone Filling 8