Trinidadian Roti Lab25 recipes

Trinidadian Roti Lab · Decision tree

Find your Trinidadian roti

One question sort all 25 recipes into 2 groups. Each question is about one of the ingredients recipes disagree on most, and splits the recipes in front of it at their own median, so each answer keeps about half of them. Every group ends with its median recipe in grams and the real recipes nearest it.

The questions

  1. Question 1

    More sugar than most, or less?

    A little sugar in some recipes helps browning; many use none.

    All 25 recipes: median 1.1% of the flour weight, 6 g per 500 g of flour; middle half 0% to 1.8%; 44% use none.

The key

Read left to right: pick an answer to question 1, then follow its row to a group. Each cell gives the answer, its bound in grams per 100 g of flour, and how many recipes give it.

Decision key: 1 questions, one per column, leading to 2 groups of recipes
1. SugarGroup
Moreover 1.1%12A12
Little or none1.1% or less13B13

The 2 groups

Each median recipe is the median of every ingredient over the group's recipes, scaled to 500 g of flour, beside the typical batch of all 25. Bold rows are the ingredients the questions asked about.

Group A · 12 recipes · 48% of all

More sugar

Sugar over 1.1% of the flour weight.

Median recipe of group A at 500 g of flour, beside the typical recipe of all 25
At 500 g flourGroup AAll
Flour500 g500 g
Water355 gabout 1 1/2 cups360 g
Baking powder9 g13 g
Fat120 gabout 1/2 cup110 g
Sugar9 gabout 2 1/4 tsp6 g
Salt10 g6 g

Nearest the middle of group A

Closest to the group's median on every ingredient at once.

  1. Buss Up Shut Roti · nigella.comsugar 1.5%
  2. Buss Up Shut (Paratha Roti) · kingarthurbaking.comsugar 2.2%
  3. Dhalpuri · travelandmunchies.comsugar 1.8%
  4. Dosti Roti · cookingwithria.comsugar 2.8%
  5. How to Make Dhalpuri Roti - Taste Trinbago · tastetrinbago.comsugar 1.4%
Back to the key

Group B · 13 recipes · 52% of all

Little or no sugar

Sugar 1.1% or less of the flour weight. 11 of the 13 use no sugar.

Median recipe of group B at 500 g of flour, beside the typical recipe of all 25
At 500 g flourGroup BAll
Flour500 g500 g
Water385 gabout 1 2/3 cups360 g
Baking powder14 g13 g
Fat48 gabout 3 1/2 tbsp110 g
Sugarnone6 g
Salt6 g6 g

Nearest the middle of group B

Closest to the group's median on every ingredient at once.

  1. Sada Roti · metemgee.comsugar 0%
  2. Easy Sada Roti · trinigourmet.comsugar 0%
  3. SADA ROTI RECIPE · cookingwithria.comsugar 0%
  4. Paratha (Oil) Roti · nowyourecooking.casugar 0%
  5. DOSTI ROTI · terisfoodtherapy.comsugar 0%
Back to the key

How the questions are chosen

Each ingredient is ranked by how much recipes disagree on it: the width of the middle half of recipes (25th to 75th percentile) divided by the median, less 4% for each place it sits down this lab's list of ingredients, so the ones that define the dish win near ties. For Trinidadian roti the order is sugar (1.64), fat (1.28), baking powder (0.76) and water (0.17), and the first 1 are asked. Salt is never asked about: recipes differ on it mostly by brand and taste.

Every split is at the median of the recipes in front of it, rounded to the percentage shown. Recipes exactly at the median go to whichever side leaves the two halves more even. No answer may keep fewer than 5 recipes; a group that could not be split further says so.

The recipes listed under each group are the 5 nearest its median on every ingredient at once, each scaled by how much recipes vary on it. Every recipe page links to the original for the method.