Ideas, Advice and Suggestions

ESSENTIAL INGREDIENTS -With approximate amounts per batch, but feel free to tweak. Listen to your heart. 

GRAIN — 3 cups - Most recipes recommend using plain rolled oats; opt for the "old-fashioned" variety rather than instant or quick-cooking oats. Occasionally, I enjoy adding a few tablespoons of uncooked quinoa (ensure it's rinsed to eliminate the bitter taste), which turns out nicely crunchy when baked. Additionally, incorporating a tablespoon or two of oat bran can be beneficial for your health and helps to bind the granola together.
NUTS — 1 to 1 1/2 cups – Nearly any nut is suitable. Consider using pecans, almonds, pistachios, hazelnuts, walnuts, or a mix of these. Ensure they are in bite-sized pieces, slicing or chopping as needed. For raw nuts, incorporate them with the other ingredients and bake as usual. If using roasted nuts, add them post-baking along with any dried fruit to prevent them from over-darkening.
SWEETENER — 1/2 to 3/4 cup - Liquid sweeteners such as syrup, honey, maple syrup, agave, or flavored syrups are ideal because they evenly coat the granola mixture, preventing clumps and an uneven granular texture. Adding a bit of brown sugar to the syrup can create a delightful caramelized, crunchy finish. It's best to avoid regular white sugar, as it doesn't blend well or contribute any flavor.
OIL — 1/4 to 1/2 cup - Oil plays a crucial role in granola preparation; it not only promotes a delightful crispy-crunchy texture but also prevents stickiness, enhancing the overall flavor since fats are flavor carriers. While neutral oils such as canola or grapeseed are reliable choices, opting for high-quality extra-virgin olive oil can introduce a subtle bitterness and a rich complexity to the granola. Alternatively, melted coconut oil can be used to infuse an interesting flavor.
SALT — 1 tsp kosher or 3/4 tsp regular - Do not forget the salt! Use a generous amount, more than you might for other baking projects, as it will enhance all the flavors and make your granola irresistibly delicious and addictive.

LESS-ESSENTIAL INGREDIENTS - Use if you like, skip if you don't.

SEEDS — 1 to 2 cups - Combine raw seeds with grains and nuts, and they will toast during baking. Pumpkin seeds are quite popular lately. Other varieties to consider include sunflower, flax, millet, and sesame seeds. However, avoid using too many different types, or you may begin to feel like a finch.
COCONUT FLAKES (Large) — 1 cup - In my opinion, it's not really optional. Large, unsweetened coconut flakes or "chips" are preferable to small shreds because they toast evenly without burning.
SPICES — 1 tsp. - Cinnamon may be the go-to spice, but venturing into the unfamiliar can be rewarding! Cardamom, for instance, is delightful; a mere half teaspoon can make a significant impact. Nutmeg and ginger also add a lovely touch. Why not experiment with savory herbs? A hint of rosemary could be intriguing!
EGG WHITE — 1 egg white (about 2 Tbsp.) – Like the coconut I don’t feel the is optional if you don’t use eggs in your diet you could try some ground flaxseed and water.

OPTIONAL

DRIED FRUIT — 1 cup (add after baking) - When adding dried fruit to granola, it's crucial not to mix it with the other ingredients before baking. If added too soon, the fruit becomes overly dry and unpleasantly crunchy, which can lead to an unhappy experience for both you and your molars.
 - For larger fruits, it's recommended to slice or chop them before adding to your dish, such as dried apricots, dried figs, dried apples, dried pineapple, and dried mango. 
- Little fruits you can throw in as-is raisins or golden raisins, dried cranberries. Citrus zest is also nice - try lemon, orange, or grapefruit.
CHOCOLATE - 1/4 cup cocoa and/or 1 cup chocolate chips
For those who want to head in a more trail-mixy direction.
Option 1: Include 1/4 cup of cocoa powder with the other dry ingredients prior to baking.
Option 2: Incorporate 1 cup of chocolate chips after the granola has cooled from baking to prevent them from melting.