\frametitle{Subfigure}% \mintinline{tex}{\usepackage{subcaption}}}
    \begin{columns}
        \begin{column}{0.4\textwidth}
            \begin{minted}[fontsize=\tiny,escapeinside=~~]{tex}
                \usepackage{subcaption}
                ...

                \begin{figure}[htbp]
                    \centering
                    \begin{subfigure}[b]{0.45\textwidth}
                        \includegraphics[width=\textwidth]{...}
                        \caption{BB}
                        \label{fig:dphiExample}
                    \end{subfigure}\qquad
                    \begin{subfigure}[b]{0.45\textwidth}
                        \includegraphics[width=\textwidth]{...}
                        \caption{CC}
                        \label{fig:fitExample}
                    \end{subfigure}
                    \caption{Meerdere afbeeldingen naast elkaar!}
                \end{figure}
            \end{minted}
        \end{column}
        \begin{column}{0.6\textwidth}
            \begin{adjustbox}{frame=1pt 10pt}%
                \begin{minipage}{\textwidth-22pt}
            \includegraphics[width=\textwidth,height=0.8\textheight,keepaspectratio]{assets/outdir/subfigure}
                \end{minipage}
            \end{adjustbox}
        \end{column}
    \end{columns}