After you have purchased the manufacturing department you can start placing items to research your products.
#0 Base Bread——White Flour / Water Bottle
#1 Whole Wheat Bread——White Flour / Rice
#2 Multigrain Bread——White Flour / Fiber Cereals
#3 Gluten Free Bread——White Flour / Cornstarch
#4 White Bread——White Flour / Cornstarch
#5 Baguette——White Flour / Water Bottle
#6 Fruit Bread——White Flour / Water Bottle
#7 Doughnut——White Flour / Butter
#8 Rolls——White Flour / Butter
#9 Croissant——White Flour / Butter
#10 Muffin——White Flour / Butter
#11 Custom Cake——White Flour
#12 Red Velvet Cake——White Flour
#13 Cheese Cake——White Flour
#14 Carrot Cake——White Flour / Carrot Tray
#15 Strawberry Cake——White Flour / Strawberry Tray
#16 Pie——White Flour / Salt
#17 Vegetable Salad——Salt / Tomato Tray
#18 Fruit Salad——Red Apple Tray
#19 Sandwich——Salt / Sliced Bread
#20 Chicken With Rice——Salt / Chicken
#21 Pasta Bolognesa——Salt / Spaghetti Box / Tomato Tray
#22 Burger——Flour / Water Bottle / Sliced Ham
#23 Soup——Water Bottle / Salt
#24 Tiramisu——Flour
#25 Apple Tart——Flour / Red Apple Tray
#26 Pumpkin Pie——Flour / Pumpkin
#27 Cookies——Flour / Cocoa Powder
#28 Pretzels——Flour
#29 Smoothies——Water Bottle / Milk Brick / Skimmed Yoghurt
By researching all of these items, you will have all recipes unlocked. Not all recipes require 7+ ingredients. I unlocked this by making Pie.
This achievement will unlock after you close your store for the day.