Treat Yourself to Oreo Bliss - chefmelt

Ingredients

• 1 ½ cups (162 g) crushed Oreo™ cookies, about 12 cookies in pieces
• ¾ teaspoon kosher salt
• 1 cup (2 sticks / 227 g) unsalted butter, softened to room temp
• 5 large egg whites, room temp
• 2 teaspoons pure vanilla extract
• 2 teaspoons baking powder
• 2 ½ cups (500 g) granulated sugar
• 1 cup whole milk, at room temp
• 2 ¾ cups (275 g) refined cake flour
• 1 ½ cups (162 g) crumbled Oreo™ cookies, split in half (about 12 cookies total)
• 4 cups (500 g) powdered sugar, split into portions
• 1-3 tablespoons regular whole milk
• 1 cup (2 sticks / 227 g) softened butter, at room temp