Combine hot milk, butter, sugar, pumpkin, salt and quarter cup flour in a large bowl. Stir yeast into quarter cup warm water and let stand for 5 minutes or until bubbly. Add yeast to the first mixture and beat vigorously. Cover and leave in a warm place to rise for 30 minutes or until light. Stir in 2-3 cups flour until dough leaves sides of bowl. Turn out onto a floured surface and knead in flour until dough is smooth and elastic, about 8 minutes. Place dough in a greased bowl, turning it to grease the top. Cover and place in a warm draft-free place until doubled in size, about 45 minutes. Punch dough down, and turn out onto a lightly floured board. Roll dough with a rolling pin to 1 cm thickness. Cut into 5 cm rounds. Place rounds about 3 cm apart on greased baking sheets. Cover and let rise for 20 minutes or until almost double in size. Bake in a preheated 200ºC . oven for 10 to dozen minutes or until golden brown. HINT: Place bottom pan on top oven rack and top pan on bottom oven rack after first six minutes of baking to ensure even brownness. Baker's note: This recipe rates four stars. It has a wonderful flavour, and a nice golden brown colour. It would be good to serve at Thanksgiving dinner.