Like some cocoa powder

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Alkalize \Al"ka*lize\ ([a^]l"k[.a]*l[imac]z), v. t. [imp. & p. p. Alkalized ([a^]l"k[.a]*l[imac]zd); p. pr. & vb. n. Alkalizing ([a^]l"k[.a]*l[imac]`z[i^]ng).] [Cf. F. alcaliser.] To render alkaline; to communicate the properties of an alkali to.

Wiktionary Word definitions in Wiktionary
vb. (en-past of: alkalize )