3 tbsp. unsalted butter, melted, plus more for pan
1 tbsp. sugar
Sliced strawberries and lemon curd, for serving
Place flour, milk, eggs, butter, sugar, and 1/2 cup water in a blender. Process until combined, 8 to 10 seconds. Refrigerate at least 1 hour and up to 2 days.
Melt about 1 teaspoon butter in a medium-size nonstick skillet over medium heat. Add 3 tablespoons batter and swirl pan to spread evenly. Cook until golden in spots on bottom and edges begin to lift from pan, 30 to 40 seconds. Lift one edge of crepe with an offset spatula, then use your fingers to gently flip. Cook on other side until just set and golden in spots, 30 to 40 seconds. Remove from skillet. Repeat with butter and remaining batter.