- A: How much chocolate do you put in the cake?
Chocolate is an uncountable noun, so we use "How much."
- A: I'd like a salad, please.
B: How many tomatoes would you like in your salad?
Tomatoes are countable, so we use "How many."
- A: Matt usually eats a lot of chips.
B: How many potatoes do we need then?
Potatoes are countable, so we use "How many."
- A: Can you buy some cream, please?
B: Yes. How much cream do you want?
Cream is an uncountable noun, so we use "How much."
- A: How much water do you drink every day?
Water is an uncountable noun, so we use "How much."