Wash strawberries under cold water and dry them really well with paper towels so there's no water left on them at all.
Put parchment paper on your baking sheet and set it aside so it's ready when you need it for your strawberries.
Put semi-sweet chocolate chips and coconut oil in your double boiler on medium-low heat and stir until it's all melted and smooth.
Hold each strawberry by the stem and dip it in the melted chocolate, and turn it to coat most of the berry.
Let the extra chocolate drip off, and then put the strawberry on the parchment paper with space between each one so they don't touch.
Put the baking sheet in the fridge for 15 minutes so the chocolate gets hard and shiny and looks really pretty on the berries.
If you want, melt white chocolate chips with coconut oil and use a fork to make pretty drizzle lines on the strawberries.
Put them back in the fridge for 10 minutes to make the white chocolate hard before you serve them to everyone.