This was such an unusual sounding cake, I had to try it. I expected a flavor totally different than what came out. Essentially, this cake is just a really moist cake with a terrific lime frosting on top. In fact, my father-in-law asked if it was a “key-lime cake,” and then had another slice, and my twelve-year-old (who was complaining that if I made a zucchini cake, no kids would it eat) ate four slices. So, I think if you’re not really into zucchini, you’re still likely to enjoy this cake! I’ve made it twice in the last week, which says a little bit about how well zucchini are growing around here. This recipe comes from Three Sisters Bake, an enchanting cookbook by these Scottish sisters that is a delight to read and look at. I’ve adjusted the measurements for US, but included the original ones as well. I’ve also adapted the baking powder for better results at high temperature (if you’re at sea level, you may want to take it down a teaspoon).
Summer Lime Cake
For the cake:
- 1/2 c. (135ml) sunflower oil
- 4/5 c. (200g) caster sugar
- 3 large eggs, at room temperature
- 2 1/2 c. (300g) all-purpose flour
- 4 tsp. baking powder
- 1/2 tsp. salt
- 12 oz. (335g) zucchini, finely grated
- grated zest of 2 limes
For the icing:
- 3/4 c. (200g) full-fat cream cheese, at room temperature
- 3/4 c. (100g) icing sugar
- grated zest of 1 lime
- juice from 2-3 limes
Preheat the oven to 350 degrees (160C, gas 2). Line the base and sides of an 8-in. springform cake pan with parchment paper.
Beat the oil, sugar and eggs together in a large bowl with an electric hand mixer for 2-3 minutes, until light and fluffy. Sift in the flour, baking powder, and salt and fold into the mixture. Fold in the grated zucchini and lime zest.
Pour into the prepared tin and bake for 40-45 minutes, until golden brown and a skewer inserted into the middle of the cake comes out clean. Allow the cake to cool a little in the tin, then turn out onto a wire rack.
To make the icing, beat the cream cheese and icing sugar together until smooth. Add the lime zest and juice and beat another 2-3 minutes on high to get really light and fluffy.
Once cool, top the cake with the icing by running a spatula or palate knife back and forth over the cake creating deep grooves to give a nice textural look.