Line a 9x13 inch baking sheet with parchment paper, making sure it covers the edges so you can lift the finished bark out easily. This step saves you frustration later when you're trying to peel it off the pan. Don't skip it — I learned that the hard way when my first batch broke into irregular pieces.

Combine 12 oz dark chocolate chips with 2 tbsp coconut oil in a microwave-safe bowl. Heat in 30-second intervals, stirring between each one, until completely melted and smooth (usually takes about 90 seconds total). Stir in 1 tsp vanilla powder and 1/4 tsp sea salt for that perfect flavor balance.

Pour the melted chocolate onto your prepared baking sheet and spread it into an even layer using an offset spatula or the back of a spoon. Get it about 1/4 inch thick so it's sturdy enough to break into pieces later. Work quickly since chocolate sets fast, but don't stress if you need a minute to smooth it out.

Before the chocolate fully sets, scatter 1 cup sliced strawberries, 1 cup fresh blueberries, and 1 cup fresh raspberries across the surface in a patriotic pattern. Press them down gently so they stick to the chocolate without sinking all the way through. This is where the red white blue treat really comes together visually.

Sprinkle 1 tbsp red sanding sugar, 1 tbsp white sanding sugar, and 1 tbsp blue sanding sugar over the berries for that extra sparkle and texture. Add 1 tbsp white chocolate shavings scattered randomly across the top for contrast. These toppings are totally optional but they make it look Instagram-worthy.

Pop the whole sheet into the freezer for 8-10 minutes until the chocolate is set but still pliable enough to break into pieces. Don't freeze it longer than 15 minutes or the bark gets too brittle and shatters unevenly when you break it. I learned this after my second batch crumbled into tiny chunks because I got distracted by a phone call.

Remove from freezer and break the patriotic chocolate bark summer creation into uneven shards by hand (that rustic look is actually the goal). Transfer to an airtight container with parchment between layers, or serve immediately for that fresh, just-made presentation.