Flavors

Answer: CHOCOLATE LAB

As puzzles are solved, the answers appear here, along with an index. Every answer can be joined with a flavor to form a common phrase:

Puzzle, answer, and indexFlavor phraseIndex into flavor
Minithemes: PICKED (1)CHERRY PICKEDC
Picture Books: FUZZ (5)PEACH FUZZH
All In: CHALLENGE (7)CINNAMON CHALLENGEO
Griddle: TABLE (1)COFFEE TABLEC
A Less-R Puzzle: COUNTY (1)ORANGE COUNTYO
Headcanon: STONE (1)LIMESTONEL
Laffy Taffy: JACK (1)APPLE JACKA
Kenken? That's ken in binary!: CONDITION (4)MINT CONDITIONT
Easy As [A, D): BLONDE (7)STRAWBERRY BLONDEE
Pocket Change: ICE (5)VANILLA ICEL
Shape of the Art: GALLERY (3)PEANUT GALLERYA
Musical Numbers: REPUBLIC (1)BANANA REPUBLICB

Indexing into the flavors yields the answer CHOCOLATE LAB.