Collocations for chocolate - noun

dark, plain (BrE), unsweetened (AmE)
milk
white
bitter
cooking
fine
melted

bar, slab
bit, chunk, piece, square
He broke off a few squares of chocolate.

break, break up
She broke a bar of dark chocolate into four pieces.

grate
melt
Melt the cooking chocolate in a basin over hot water.

coat sth in, coat sth with, cover sth in, cover sth with, dip sth in, spread (sth with), sprinkle (sth with)
a box of brazil nuts coated in chocolate

melt
Stir until the chocolate has melted.

bar, chip, chunk, piece
chocolate chip cookies

candy (AmE)
biscuit (BrE), brownie, cake, cookie (AmE), doughnut/donut, fudge, ice cream, milk, milkshake, mousse, muffin, pudding, sauce, syrup, etc.
factory

soft-centred
handmade

box

box

hot, steaming
drinking (BrE)

cup, mug
a cup/mug of hot chocolate (BrE, AmE)
a cup/mug of chocolate (BrE)

drink, sip