Here is the full list of all 21 Delicious - there are Emily's Home Sweet Home achievements.
Bought all items in all restaurants.
Unlocked and Collected Everything.
Bought all items in the house.
Watched the entire credits.
Unlocked every photo-moment.
Finished Emily's Place.
Achieved 3 stars on each day.
Finished all the Challenges and Bonus Levels.
Found all 60 mice.
Walked 100 miles.
You have Chosen every product in every environment at least once.
Unlocked all products.
Finished the Ski-hut.
Finished the Farmers Market.
Finished Happy Funtime Land.
Finished Talon Lake.
Served 500 drinks.
Served 250 products quickly.
Entertained a table 100 times.
Finished the Garden.
Had an order on your tray before it was ordered.