Peanut butter and jelly is a classic American flavour combination. This traybake recipe is a riff on the beloved peanut butter and jelly sandwich. Simple to make and delicious to eat, it's a great way to use up leftover jelly or jam.
In a large saucepan, melt the butter over a gentle heat.
100 g unsalted butter
Remove from the heat, add the peanut butter and stir until smooth.
80 g smooth peanut butter
Add the sugar and salt and stir well.
125 g golden caster sugar
Beat in the eggs, one by one.
2 medium eggs
Using a wide gauge sieve, sift in the flour and baking powder. If there are any large pieces of bran left in the sieve, either keep them for something else or transfer them to the compost bin.
140 g wholemeal spelt flour, 1 ¼ tsp baking powder, 1 pinch fine sea salt
Stir in the flour until it's just combined, than stir in the kefir until that's combined too.
60 ml kefir, buttermilk, sour milk or watered down yoghurt
Scrape the batter into a lined 20cm (8 inch) sq. tin or greased silicone mould. Level it, then add teaspoonfuls of the jam* on top and swirl it into the cake batter using a skewer or a teaspoon handle. Try not to over swirl or the traybake will look muddy rather than pretty. You want to see those swirls.
60 g jam of your choice
Bake in the centre of the oven for 35-40 minutes or until the cake is well risen and the top is firm to the touch.
Allow to cool in the tin, then cut into nine even squares.
Notes
* Give the jam or jelly a good stir to loosen it. If it's really thick though, you might need to partially melt it over a low heat.To make a larger version, double the ingredients and use a 23 x 30 cm (9 x 12 inch) tin. You may need to bake it for a little longer though.The cake is at its best eaten on the day of baking, however it will last in an airtight tin for three to four days and still taste good.You’ll find additional tips and info about this recipe in the main body of the post.Please note: calories and other nutritional information are per serving. They’re approximate and will depend on serving size and exact ingredients used. Please refer to my nutrition disclaimer for further information.