I have a carrot cake recipe which my DH, who has an extreme sweet tooth, and my children love. It uses 750g of carrots and is not very sweet. Please excuse the cup measurements - it is a US recipe (from Saveur magazine).
1 1⁄2 cups plus 2 tbsp. all-purpose flour
3/4 cup sugar
1 1⁄2 tsp. baking soda
1 tsp. baking powder
1 tsp. ground cinnamon
1⁄2 tsp. ground cloves
1⁄2 tsp. freshly grated nutmeg
1⁄2 tsp. ground allspice
1⁄2 tsp. salt
2⁄3 cup vegetable oil
3 eggs, lightly beaten
1 1⁄2 lb. carrots, peeled, trimmed, and grated (750g)
For the cake: Preheat oven to 350ºF (175C). Grease two 8" round cake pans with butter, dust each with 1 tbsp. of the flour, tapping out excess, and set aside.
Combine the remaining flour, sugar, baking soda, baking powder, cinnamon, cloves, nutmeg, allspice, and salt in a large bowl. Add oil and eggs and stir until smooth. Add carrots and mix well. Divide batter between prepared pans. Bake until toothpick inserted in center comes out clean, about 25 minutes. Set aside to let cool on a rack, then remove cakes from pans. (NB: I find that it takes longer than 25 minutes to fully cook, but that might be my oven)
Ice with your favourite cream cheese icing recipe - I like Nigella's.