Slow-Cooker Rice Pudding

Ingredients (9)

• 1 tablespoon butter, softened
• 5-1/4 cups whole milk
• 1 can (14 ounces) sweetened condensed milk
• 1 cup sugar
• 1 teaspoon ground cinnamon
• 3/4 teaspoon salt
• 1/4 teaspoon ground nutmeg
• 1-1/2 cups uncooked long grain rice
• 1 tablespoon vanilla bean paste or extract