Line a sheet pan with parchment or waxed paper.
Wash and dry your strawberries well.
Melt the semi-sweet chocolate in a microwave safe bowl at half power, for 2 minutes, stir and then continue heating until melted. I would recommend small increments and stir between each heating time.
Hold the strawberry by the stem, dip each one into the dark chocolate, lift and twist slightly, letting any extra chocolate drip back into the bowl.
Place the chocolate dipped strawberries on the parchment paper.
If you want to drizzle white chocolate over your strawberries, heat the white chocolate chips the same way as above. Then dip a fork in the white chocolate and drizzle the white chocolate over the dipped strawberries. (optional)
If you want to top with nuts or sprinkles, sprinkle the topping of your choice on the semi-sweet dipped strawberries.
Set the strawberries aside until the chocolate sets, for about 30 minutes. If they still have not fully set, you can put them in the refrigerator for 5 minutes or until they have set.