3 salted butter rich caramel filling Recipes

all-purpose flour, plus extra for dusting pan, baking powder, salt, unsalted butter, at room temperature, plus extra for greasing pan, granulated sugar, eggs, at room temperature, pure vanilla extract, whole milk, cajeta, mexican vanilla buttercream frosting, cajeta is a mexican caramel sauce made from goats milk that can be found in latin markets. if unavailable , use a rich dark caramel sauce, powdered sugar, unsalted butter, at room temperature, salt, vanilla extract, mexican crema or sour cream, plus extra as needed

all-purpose flour (8 3/4 oz), fine sea salt, cold unsalted butter, diced (5 oz), egg, superfine sugar (caster, 2 oz), recipe sweet-butter pastry dough, superfine sugar (caster, 9 oz), salted butter, diced (4 oz), whipping cream, lightly whipped cream , for serving