Swedish Semlor

Name: Swedish Semlor
Cuisine: European
Ingredients: 7 tablespoons unsalted butter; 1 cup milk; 2 teaspoons active dry yeast; 2 eggs, divided; 1/4 cup natural cane sugar; 2 teaspoons cardamom seeds, crushed; 1/2 teaspoon salt; 3 to 3 1/2 cups white whole wheat flour (or substitute 3 1/2 cups all-purpose flour); 1 1/2 cups blanched almonds; 3 tablespoons natural cane sugar; Zest of 1 Meyer lemon; 1/2 to 1 cups milk, depending on dryness of filling; 1/2 to 1 cups heavy whipping cream, whipped; confectioners\' sugar, for decoration