Cakes:
8 tablespoons unsalted butter, melted
3/4 cup granulated sugar
2 large eggs
1 tablespoon grated lemon zest
1 teaspoon vanilla extract
1 teaspoon lemon extract
1 1/2 cups all-purpose flour
1 tablespoon chopped fresh thyme
1/4 teaspoon baking soda
1/4 teaspoon ground cardamom
1/4 teaspoon salt
1/4 cup lemon juice
Glaze:
1 1/2 cups confectioners' sugar
7 teaspoons lemon juice
1 1/2 tablespoons grated lemon zest
Thyme sprigs, for garnish