For the Double Blueberry Muffins
225 gPlain Flour (8oz)
2Dr. Oetker Baking Powder Sachets (2 sachets/ 10g (2tsp)
115 gCaster Sugar (4oz)
150 mlEntire Milk (1/4pt)
115 gEvenly Salted Butter (4oz)
5 mlDr. Oetker Madagascan Vanilla Extract (1 tsp)
125 gBlueberries (4 ½ oz , of recent blueberries)
140 gBlueberry Jam
1Medium Egg Crushed