Wash apples, rub dry, quarter and remove core. Wash and dab the raisins. Cut both into small pieces and mix with 1 tbsp lemon juice.
Wash the chicken breast fillets, pat dry. Cut one pocket at a time, as large as possible, and open it. Salt and pepper inside, fill with 1-2 tablespoons of apple mixture and close.
Spread out 3 slices of bacon next to each other, overlapping them, place the chicken breast fillets on top and season. Use little salt, the bacon is already salty. Roll up chicken breasts tightly, fix with toothpicks if necessary.
Heat the olive oil in a pan. Sear the filled, wrapped chicken breasts first on the seam side and then on the other sides. Remove from the pan, place in an ovenproof dish, brush with some frying fat and finish cooking in a hot oven at 160 degrees for 10-12 minutes.