Butterscotch Cake With Marshmallows without milk

Blondie: 1 1/2 cups all-purpose flour 2 teapsoons baking powder 1 teaspoon kosher salt 3/4 cup (1 1/2 sticks) unsalted butter 2 cups (packed) light brown[...]

3/4 cup butter , melted 2 cups light brown sugar , packed 3 eggs 2 cups flour 2 teaspoons baking powder 1/2 teaspoon salt 1 teaspoon vanilla extract 1 cup[...]

12 tablespoons unsalted butter (1 1/2 sticks) 1 cup dark brown sugar 5 cups heavy cream 1 tablespoon fine sea salt 1 vanilla bean , seeds scraped 6 large egg[...]