Albert Barnes Commentary Judges 6:19

"And Gideon went in, and made ready a kid, and unleavened cakes of an ephah of meal: the flesh he put in a basket, and he put the broth in a pot, and brought it out unto him under the oak, and presented it." — Judges 6:19 (ASV)

Unleavened cakes - Being much more quickly baked (and also as connected with the meat offering). An ephah, containing 3 measures, was the quantity of flour commonly used at one baking (Genesis 18:6; Exodus 16:16).

Presented it - A word especially, though not exclusively, proper for offerings to God. See Amos 5:25, where the same word is translated as 'offered'.