Prepare the strawberry maceration: In a small bowl, toss the sliced strawberries with 1 tablespoon of sugar. Set aside for at least 15 minutes.
Make the crepe batter: In a blender, combine the gluten-free flour, eggs, milk, water, 2 tablespoons of melted butter or oil, 1 tablespoon of sugar, and salt. Blend until completely smooth, about 30 seconds. Let the batter rest for 15 minutes.
Prepare the chocolate ganache: Heat the heavy cream in a small saucepan until it just begins to simmer. Remove from heat and pour it over the chopped chocolate in a heatproof bowl. Let it sit for 5 minutes, then whisk until smooth. Let the ganache cool slightly until it thickens to a spreadable consistency.
Cook the crepes: Lightly grease an 8-inch non-stick skillet with butter or oil and heat over medium heat. Pour about 1/4 cup of batter into the center of the hot pan, immediately tilting and rotating the pan so the batter coats the bottom in a thin, even layer.
Cook for 1 to 2 minutes until the edges look dry and the bottom is lightly golden. Flip the crepe and cook the other side for about 30 seconds. Slide the finished crepe onto a plate. Repeat with the remaining batter, stacking the crepes as you go.
Assemble the crepes: Lay a crepe flat. Spread a spoonful of chocolate ganache over half of the crepe surface. Top the ganache with a layer of macerated strawberries.
Fold the crepe in half, then in half again to form a triangle, or roll it up. Serve immediately with extra strawberries and any remaining ganache.
Notes
If your gluten-free flour blend does not contain xanthan gum, add 1/2 teaspoon to the batter for structure.
For a dairy-free option, use non-dairy milk and oil instead of butter, and use a dairy-free dark chocolate alternative for the ganache.
If you prefer a thinner ganache for drizzling, use less chocolate or add a teaspoon of warm milk after whisking.