For the green tea crêpes:
1 cup all-purpose flour
1 cup milk
1/2 cup lukewarm water or beer
4 large eggs
4 tablespoons unsalted butter, melted
3 tablespoons sugar
1 pinch salt
2 tablespoons matcha powder
1 tablespoon Cointreau or Grand-Marnier

For the pastry cream:
2 cups whole milk
6 large egg yolks
1/2 cup sugar
1/3 cup cornstarch
1 teaspoon vanilla extract
2 tablespoons butter, at room temp’
zest of 1/2 orange
1 tablespoon Grand-Marnier (optional)
1/2 cup heavy cream, whipped (optional)

To serve:
Candied orange zest (optional)