If you have not yet acquired such a useful thing as a mortar, then in order to grind the spices you can turn the situation around as follows. Take a tea towel, put all the spices in it and roll them into a knot. Place the bundle on a sturdy, hard surface, such as a cutting board, so that the curled tail of the towel remains in your hand. Hit the knot with a rolling pin vigorously several times to grind the spices. But it's better to buy a large granite mortar, you will see, it will not get bored in your kitchen