2 cups semisweet chocolate chips
14 oz. sweetened condensed milk, divided
1 tbsp melted unsalted butter
1/8 tsp salt
1 1/2 tsp vanilla extract
1 cup white chocolate chips
Flavor variation: peanut butter, coconut extract, caramel candies or vanilla extract
Line an 8-inch square pan with parchment paper. Melt chocolate chips, condensed milk, butter and salt in the microwave for ½ a minute. Let it cool slightly and add vanilla extract.
Spread the mixture evenly into the prepared pan. Divide the fudge into four parts by pressing strips of parchment paper.
Divide white chocolate and leftover condensed milk in four microwave bowls. Heat all of them for 15-30 seconds, one at a time until smooth. Then mix in your favorite flavor.
Spread your desired flavors evenly on 1/4 of the chocolate layer. Refrigerate until firm. Cut into squares and enjoy.