\documentclass[10pt,letterpaper]{article}
\usepackage[letterpaper, margin=1in]{geometry}
\usepackage{multicol}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{gensymb}
\usepackage{kpfonts}
\usepackage{units} % Get nice fractions
\usepackage{tabularx}
\usepackage{array}
\author{Kenneth John Odle}
\title{Oatmeal}

\begin{document}

\begin{LARGE}
\textbf{Oatmeal}
\end{LARGE}

\hrulefill

\bigskip

\begin{multicols}{2}

Because oatmeal is good for you, but sometimes we forget the directions.

\end{multicols}

\begin{large}
\textbf{Proportions}
\end{large}

\bigskip

\renewcommand{\arraystretch}{1.750}

\begin{tabularx}{0.9\textwidth}
{
 | >{\raggedright\arraybackslash}X
 | >{\centering\arraybackslash}X
 | >{\centering\arraybackslash}X
 | >{\centering\arraybackslash}X
 | >{\centering\arraybackslash}X
 |
}
 \hline
 & \multicolumn{3}{c|}{\textbf{Stovetop}} & \textbf{Microwave} \\ \hline
 \textbf{Servings} & 1 & 2 & 6 & 1 \\ \hline
 \textbf{Water} {\small (or milk)} & 1 cup & 1 \nicefrac{3}{4} cups & 5 cups & 1 cup \\ \hline
 \textbf{Oats} & \nicefrac{1}{2} cup & 1 cup & 3 cups & \nicefrac{1}{2} cup \\ \hline
 \textbf{Salt} {\small (Optional)} & Dash & \nicefrac{1}{8} tsp & \nicefrac{1}{4} tsp & Dash \\ \hline
\end{tabularx}

\bigskip

\begin{large}
\textbf{Method for Quick Oats}
\end{large}

\bigskip

\textbf{Stovetop:}

\begin{enumerate}
 \item Bring water or milk and salt to a rapid boil.
 \item Stir oats into liquid.
 \item Boil 1 minute. Stir occasionally.
 \item Cover and remove from heat. After a few minutes, stir and serve.
\end{enumerate}

\bigskip

\textbf{Microwave:}

\begin{enumerate}
 \item Combine water or milk, salt, and oats in a 2-cup microwaveable cereal bowl.
 \item Microwave on HIGH for 1\nicefrac{1}{2} to minutes or until thickened.
 \item Mix well before serving. Bowl will be hot.
\end{enumerate}

\bigskip

\textbf{Notes}

\begin{enumerate}
 \item For thicker oatmeal, use less water or milk. For thinner oatmeal, use more water or milk.
 \item Due to the difference in microwave ovens, cooking time is appropriate.
\end{enumerate}

\end{document}