Mash a banana with a fork. Place the oats in a medium bowl. Make 1/2 a cup of instant coffee and pour hot into the oats. You can use a decaf coffee if needed. Mix it all together. Add mashed banana to the oats.
Measure the rest of ingredients: raisins, chopped walnuts, sugar and cacao powder (apart from the desiccated coconut, which is for coating the balls.)
Mix all ingredients well.
Place the coconut in a deep plate.
Start forming small balls in your hands and coating them in the desiccated coconut. When ready, place them in a container or a decorative plate and place them in the fridge for a couple of hours. The flavours will blend together and the oats will become softer during this time.
