Marigold Cake
["1 c. softened butter", "1 c. Caster sugar", "4 eggs, beaten", "2 c. plain flour", "grated rind of 1 lemon and one orange", "1 tsp. baking powder", "3 Tbsp. fresh marigold petals or 2 tsp. dried", "granulated sugar (optional)"]
["Cream butter with sugar and add eggs, one at a time.", "Sift flour with baking powder and fold into creamed mixture.", "Add grated rinds and marigold petals.", "Spoon into prepared 2-pound loaf pan or 2 (1 pound) loaf pans.", "Bake in preheated 350\u00b0 oven for about 1 hour for 2-pound tin; about 40 minutes for 1-pound. Sprinkle with granulated sugar about halfway through if desired. Cool 5 minutes.", "Remove from tin.", "Serve just when cool.", "Keeps well and can be frozen."]
["butter", "sugar", "eggs", "flour", "lemon", "baking powder", "fresh marigold petals", "sugar"]