Upgrade Farming twice to get garden
Get kids to dig holes in garden
Plant seeds from seed bag & apple tree seed by crafting hut
Use fertilizer(mixed herbs+water) on garden 3 times
Gather resources from garden & apple tree
Make dough(flour+water)
Upgrade crafting if unable to make dough
Put villager on crafting hut & rhubarb, dough and apple should be options.
Click on them
Prepare oven by putting a villager on rock pile by fire pit and they'll heat up a rock for oven
Put villager on round table that should have the ingredients on it