1/2 cup water
4 Tablespoons unsalted butter, cut into pieces
1/2 cup gf flour
3 large eggs, at room temperature
For frosting:
6 ounces semi-sweet gf chocolate, chopped
1 cup
créme fraiche (or cream)
1-1/2 cups sugar
6 Tablespoons unsalted butter, cut into pieces
1 teaspoon vanilla