Sift flour, yeast and salt together in a large bowl. Add liquid ingredients and mix to form a soft dough. Place in a clean, lightly oiled bowl. Cover and leave to rise in a warm spot until doubled in size. Heat oil in a deep pot. Lightly dust hands with flour, tear chunks off dough and roughly shape into balls. Fry dough balls for 5–6 minutes (turning after 3 minutes), until golden and cooked through. Drain on paper towel. Serve warm, drizzled with golden syrup.