The phrase
"nice big batch" means a large quantity of something that looks good or is favorable.
Full definition
THey make
a nice big batch for smaller sized candies.
Remember make
a nice big batch when you are cooking rice.
I followed your recipe and made
a nice big batch of both to take to a Harry Potter - themed party.
This recipe also makes
a nice big batch.
-- to enjoy
a nice big batch of citrusy salsa.
Making
a nice big batch of this cannellini bean and artichoke spread for quick lunches, snacks and picnics is ideal.
It makes
a nice big batch of super versatile goodness.
I am going to make
a nice big batch tomorrow.