Preheat oven to 180 C / Gas 4. Grease baking trays. Sift together the 250g flour, bicarbonate of soda,1/4 teaspoon salt, cocoa and 200g sugar.. Heat oven to 180C/160C fan/gas 4 and line baking trays with parchment. Mix flour, cocoa, bicarb, sugar and a pinch of salt. Whisk the egg, oil and buttermilk together, then mix into dry ingredients with 75ml boiling water.. Whoopie pie voi olla kakku, leivos tai keksi. Nämä ovat helppoja valmistaa vaikka lastenkin kanssa. 20-25kpl Pohjat: 250g vehnäjauhoja 2tl leivinjauhetta 115g voita ripaus suolaa 150g sokeria 1 . Whoopie Pie Factory, Crich. 74 likes. Whoopie pies, healthy muffins and cookies and scrumptious quiches. Great for birthdays, office parties and any Whoopie pies, healthy muffins and cookies and scrumptious quiches.. #HowItsMade Mondays 9/8c on Science This Whoopie Pie factory has a variety of delicious ingredients that give these traditional treats their signature taste.. Spoon 12 even dollops onto each baking sheet, leaving plenty of space between them. Bake on the middle shelf of the oven for 10 to 12 minutes. Bake on the middle shelf of the oven for 10 to 12 minutes..