Muddle: 3 mint leaves, 3 lime wedges, raspberries and blackberries
Fill cup with ice
Add 4 oz Bacardi Razz Rum
Shake it
Splash of Soda and Splash of Sprite
Served in High ball
2 tablespoons unsalted butter, melted and slightly cooled, more softened butter for rubbing the pan and for serving Vegetable shortening, such as Crisco (if using cast-iron pan) 4 large eggs, at room temperature 1¼ cups whole milk, at room temperature 1¼ cups (5.6 ounces) all-purpose flour ½ teaspoon table salt