Start with ten kilos of flour for about four bucks, dry yeast, sugar and salt. Get some variety by adding cheap oats and breakfast grains. Add an egg or two, and powdered milk. Next month add vanilla. Always plan ahead.
Pie comes later.
Crispy buns, English muffins, garlicky bread sticks, pancakes. Get a big sack of corn meal for three bucks, and you'll have crunchy cornbread, johnny-cake with syrup made from your sugar, cornstarch with a dash of cinnamon. So many sizes and shapes that your friends will come to your room to celebrate their birthdays for at least a couple of months. Have a great party. Pasta is usually one of their staples.