Put a baking sheet in the oven. Preheat the oven to 180°C/ 160°C fan/ gas mark 4/ 350°F
Grease the Bundt tin with the spray. Spray evenly over all the surfaces, right into every nook and cranny.If you have the non-spray version or are using oil, use kitchen paper and/or a pastry brush to get into all those crevices
Leave the tin upside down over the sink to stop the oil from accumulating in the bottom
For the bundt cake:
Put all the cake ingredients into the processor, mixer bowl or large mixing bowl and blitz until mixed
225 g butter,, 300 g caster sugar, 6 large eggs, 350 g self-raising flour, 250 ml plain full-fat yogurt, 3 lemons, zest only
Scrape down and mix again. Pour into your tin, using a spatula to get all the mixture into the tin and smooth the top
Place the tin on the pre-heated baking sheet and cook for 45-50 minutes. Check if it’s done by pushing a skewer in. If the skewer comes out clean, the cake is doneThe cake will be well-risen and golden
For the marinade:
Mix the lemon juice and sugar until the sugar has dissolved
2½ lemons, juice only, 3 tablespoons caster sugar
Leave the cake to cool for 5 minutes, then push a thin skewer or cocktail stick into the cake all over and spoon half the lemon marinade over. Leave in the tin for about 25 more minutes
Gently push the cake away from the edges of the tin. If the cake has a domed top, you may want to level it off with a sharp knife so that it sits flat
Put a wire rack over the top of the cake and turn upside down. The cake should slide out of the tin
Use the skewer/cocktail stick to make more holes and spoon the rest of the marinade over the cake. Leave to cool
For the icing:
Mix the lemon juice and icing sugar together to make icing that is runny but will hold its shape
75 g icing sugar, ½ lemon, juice only
Once the cake has completely cooled, drizzle the lemon icing over with a spoon.
Notes
The cake will keep for at least a week in an airtight container - preferably in the fridge.