1/2 cup strawberry jelly
5 tablespoons elderflower liqueur, such as St-Germaine
2 1/4 cups all-purpose flour
2/3 cup sugar
1 1/4 teaspoons baking powder
1/4 teaspoon salt
Pinch of freshly grated nutmeg
1 cup heavy cream
2 large eggs, lightly beaten
1 teaspoon vanilla extract
Vegetable oil, for frying
Cinnamon sugar, for coating