Make-Ahead S'Mores
["1 (8 oz.) pkg. semi-sweet chocolate squares", "1 (14 oz.) can Eagle Brand sweetened condensed milk (not evaporated milk)", "1 tsp. vanilla extract", "2 c. Campfire miniature marshmallows", "32 (4 3/4 x 2 1/8-inch) whole graham crackers"]
["In a heavy saucepan over low heat, melt chocolate.", "Add sweetened condensed milk and vanilla; cook and stir until smooth, making 1 sandwich at a time.", "Spread 1 tablespoon chocolate mixture on each of 2 whole graham crackers; sprinkle 1 with marshmallows and gently press second graham cracker, chocolate side down, on top.", "Repeat with remaining ingredients.", "Carefully break each sandwich in half before serving.", "Wrap in plastic wrap; store at room temperature.", "Makes 64 servings."]
["semi-sweet chocolate squares", "condensed milk", "vanilla extract", "Campfire miniature marshmallows", "graham crackers"]